Optimised chirped fibre Bragg gratings for detonation velocity measurements
Optimised chirped fibre Bragg gratings for detonation velocity measurements
Over the last decade, the use of chirped fibre Bragg gratings (CFBGs) in detonation velocity experiments has been steadily increasing. In this paper, we show how CFBG design parameters—chirp-rate, reflectivity and apodisation—affect linearity in detonation velocity tests. It is found that the optimal CFBG detonation velocity probe should have a high chirp-rate, a low reflectivity and no apodisation. As a further demonstration of these findings, we measure detonation velocity with a 24 cm optimised CFBG; the longest CFBG test of this kind so far.
Chirped gratings, Detonation, Fibre Bragg gratings, Fibre sensing, Velocity sensing
1-15
Pooley, Josh
788d06b3-b7fd-4741-a2fe-c46f218ffeb1
Price, Ed
d7c2e2e5-b6ef-4cf8-b4c1-de2072647f54
Ferguson, James W.
895c1002-9e99-4320-8ec9-ec5c9bffecff
Ibsen, Morten
22e58138-5ce9-4bed-87e1-735c91f8f3b9
1 August 2019
Pooley, Josh
788d06b3-b7fd-4741-a2fe-c46f218ffeb1
Price, Ed
d7c2e2e5-b6ef-4cf8-b4c1-de2072647f54
Ferguson, James W.
895c1002-9e99-4320-8ec9-ec5c9bffecff
Ibsen, Morten
22e58138-5ce9-4bed-87e1-735c91f8f3b9
Pooley, Josh, Price, Ed, Ferguson, James W. and Ibsen, Morten
(2019)
Optimised chirped fibre Bragg gratings for detonation velocity measurements.
Sensors (Switzerland), 19 (15), , [3333].
(doi:10.3390/s19153333).
Abstract
Over the last decade, the use of chirped fibre Bragg gratings (CFBGs) in detonation velocity experiments has been steadily increasing. In this paper, we show how CFBG design parameters—chirp-rate, reflectivity and apodisation—affect linearity in detonation velocity tests. It is found that the optimal CFBG detonation velocity probe should have a high chirp-rate, a low reflectivity and no apodisation. As a further demonstration of these findings, we measure detonation velocity with a 24 cm optimised CFBG; the longest CFBG test of this kind so far.
Text
sensors-19-03333-v2 (2)
- Version of Record
More information
Accepted/In Press date: 23 July 2019
e-pub ahead of print date: 29 July 2019
Published date: 1 August 2019
Keywords:
Chirped gratings, Detonation, Fibre Bragg gratings, Fibre sensing, Velocity sensing
Identifiers
Local EPrints ID: 433465
URI: http://eprints.soton.ac.uk/id/eprint/433465
ISSN: 1424-8220
PURE UUID: 8171fb30-5383-4369-aaed-2c4a1e901a91
Catalogue record
Date deposited: 23 Aug 2019 16:30
Last modified: 17 Mar 2024 12:33
Export record
Altmetrics
Contributors
Author:
Josh Pooley
Author:
Ed Price
Author:
James W. Ferguson
Author:
Morten Ibsen
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics